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Carbon-dioxide levels have increased every year, and earlier this month they reached the milestone of four hundred parts per million. "It feels like the inevitable march toward disaster," Lamont-Doherty scientist Maureen Raymo told the Times.

The type of tornado that hit Oklahoma could become more common as the atmosphere warms. Or maybe not. Lamont-Doherty scientist Adam Sobel comments on the state of tornado prediction.

A magnitude 4.4 earthquake in Ontario, Canada, was felt early Friday from upstate New York to the Vermont border and recorded on the Lamont-Doherty Cooperative Seismographic Network.

David Ferguson, a volcanologist at Lamont-Doherty, discusses the possibility of humans stopping massive magma flows.

Lamont-Doherty scientist Klaus Jacob discusses the difficult choices New York City must make to confront rising sea levels.

Lamont-Doherty scientist Jason Smerdon speaks with public radio host Kathleen Dunn about C02 surpassing the 400 parts per million mark.

Lamont-Doherty scientist Klaus Jacob explains what went wrong with New Jersey's transit preparations for Hurricane Sandy.

With construction of the new Tappan Zee bridge set to begin, Dorothy Peteet, a scientist at Lamont-Doherty, worries that restoration plans for the Piermont marshlands may be moving too quickly.

The last time the carbon dioxide level was this high was at least three million years ago, during an epoch called the Pliocene. “It feels like the inevitable march toward disaster,” said Maureen E. Raymo, a scientist at Lamont-Doherty.

The last time the planet was such a greenhouse, our ancestors were climbing down from the trees—and sea level was tens of feet higher. Lamont-Doherty scientist Maureen Raymo explains what the planet was like at this time.

Cites a 2012 study on past ocean acidification events led by Lamont-Doherty scientist Baerbel Hoenisch.

In an letter to the editor of the Times, Lamont-Doherty scientist Robert Newton argues for field research opportunities for high school students.

Lamont-Doherty scientist Wallace Broecker continues to study both climate change on a global scale and how increasing levels of carbon dioxide in the atmosphere are causing an increase in temperatures in both the Northern and Southern hemispheres.

The advice to build smarter, and higher, can be found in a 2011 report by ClimAID, a united effort from some 50 researchers at leading institutions such as Cornell, New York City and Columbia University’s Lamont-Doherty Earth Observatory campus in Palisades.

Peter Kelemen, a veteran earth scientist at Lamont-Doherty, pushes back against dystopian depictions of global warming and the human response.

Lamont deputy director Arthur Lerner-Lam discusses recent advances in the quest to predict earthquakes.

Lamont-Doherty scientist Maureen Raymo discusses her research on global sea levels during the Pliocene, about 3 million years ago.

Profile of Paul Olsen and his decades-long fascination with New Jersey geology.

A team of scientists that included Lamont-Doherty researchers Edward Cook, Jason Smerdon and Brendan Buckley found that the period 1971-2000 was the warmest three decade interval in at least 1,400 years.

Lamont-Doherty scientist Klaus Jacob discusses climate adaptation strategies for New York.